Quiz on The Nature of Science and Physics

What is a model in the context of physics?

• A physical representation of an object

• A mathematical equation

• A simplified version of reality

• A theory that explains phenomena

How does a model differ from a theory?

• Models are always more complex than theories

• Models are used for predictions, while theories explain

• Theories are based on experiments, models are not

• Models can never be tested

What determines the validity of a theory?

• The number of experiments conducted

• The ability to make accurate predictions

• The complexity of the theory

• The popularity among scientists

What is one advantage of using metric units?

• They are more familiar to most people

• They are based on multiples of ten

• They are used only in scientific contexts

• They are less precise than imperial units

What is the relationship between accuracy and uncertainty in measurements?

• Higher uncertainty means higher accuracy

• Higher accuracy means lower uncertainty

• They are unrelated

• Both are the same concept

What is the speed limit on some interstate highways in meters per second if it is 100 km/h?

• 27.8 m/s

• 25.0 m/s

• 22.2 m/s

• 30.0 m/s

How many significant figures are in the number 100?

• 3

• 1

• 4

• 2

What is the percent uncertainty if a bathroom scale reads 65 kg with a 3% uncertainty?

• 3.0%

• 2.0%

• 4.0%

• 1.5%

What is the height in kilometers of Mount Everest, which is 29,028 feet?

• 8.847 km

• 9.000 km

• 8.500 km

• 8.000 km

If a car speedometer has a 5.0% uncertainty, what is the range of possible speeds when it reads 90 km/h?

• 90.0 to 95.0 km/h

• 85.5 to 94.5 km/h

• 80.0 to 100.0 km/h

• 88.0 to 92.0 km/h